Tips and Tricks with MS SQL (Part 5)

Separate Your File Types

It’s too common and important of an occurrence to not mention the need for file separation in this series. If you’re running Microsoft SQL Server of any version, it’s important you separate your file types to different logical or physical locations. “Data” files, “Log” files, and “TEMPDB” files shouldn’t ever live in the same logical drive. This has a big impact on performance and makes troubleshooting issues much harder to isolate when it comes to finding read/write contention as a suspect.

It’s understandable, the quick need of a SQL Server pops up and you install a Development Edition or Express Edition in 10 minutes leaving file types to their default locations. However, once this system becomes a production server, you better know how to relocate these files to new locations or do it right the first time around. It’ll be easier earlier on rather than after the data grows and needs a bigger maintenance window to move.

To keep with Microsoft Best Practices, you can use a drive naming convention similar to what I’ve listed below to help remember where to place your files. If you’re fortunate enough to have physical drive separation, all the power to you. For most servers I see in this situation, it’s best to start with logical separation at a minimum to yield some powerful results.

Filetype Mapping:

– C:\ – System Databases (default MS SQL installation location)

– D:\ – Data Files

– L:\ – Log Files

– T:\ – TEMPDB Files

– B:\ – Backup Files (with redundancy of course…)

Any questions, comments, or feedback are appreciated! Leave a comment or send me an email to aturika@crossrealms.com for any SQL Server questions you might have!

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